RP Custom Age 625+ Head Stud Kit Subaru Models inc. 2002-2014 WRX 2004+ STI
RallySport Direct proudly carries some of the best automotive hardware in the industry brought to you by ARP. 
 
Here, you are looking at the ARP Custom Age 625+ Head Stud Kit. These head studs are ideal for those of you who are running much more boost and power over factory levels in your racecar, rally car or daily driver and need a strong head stud kit to keep your heads from lifting. 
 
DETAILS:
Made using newly formulated super-alloy demonstrates superior fatigue cycle life
High tensile strength and toughness of 260,000-280,000 psi
Resistance to atmospheric corrosion and oxidation
Includes (12) head studs
Includes (12) nuts
Includes (12) washers